Valve.



Patented May 7, I l90l.

a. BONNELL VALVE.

(Application filed Jan. 21, 1901.)

(No Model.)

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E D F Stats N rrn ll:

RUSSELL BONNELL, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE NELSON VALVE COMPANY, OF WYNDMOOR, PENNSYLVANIA.

VALVE.

SPECIFICATION formingpart of Letters Patent No. 673,812, dated May 7, 1901.

Application filed January 21, 1901. Serial No. 44,053. (No model.)

To aZZ whom it may concern.-

Be it known that I, RUSSELL BONNELL, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Valves; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to valves; and it consists in the novel construction and combination of the parts hereinafter fully described and claimed.

In the drawings, Figure l is a vertical section through the valve. Fig. 2 is asectional plan view taken on the line a: in Fig 1.

A is the valve-casing, provided with converging valve-seats a.

20 B represents two plates or disks,whichhave projections or lugs Z) on their backs, said lugs being arranged in pairs one above the other and separated by narrow slots or passages b.

C is a carrier for the plates B, consisting of a double-tapered plate, which engages loosely with the lugs b. The backs of the plates B bear against the middle part of the carrierplate where it is widest, and the plates are free to oscillate in every direction. The end portions of the carrier-plate are arranged in the passages b.

D represents projections on the ends of the carrier-plate, which slide in guides at on the casing, so that the carrier is prevented from 3 5 revolving; but any other approved guide mechanism may be used.

Any approved means can be used for raising and lowering the plates B, and when a valve-stem is used it is immaterial whether the stem moves vertically or not.

E is a screw-threaded valve-stem which is journaled in the upper part of the casing and which screws into a boss 9 on the carrier and which affords a means for raising and lower ing it and the plates B. F is a hand-Wheel for revolving the valve-stem.

When the valve-stem is revolved so as to press the carrier downward, the plates 13 are pressed firmly against the valve-seats and bear with equal pressure all around the seats. 56 When the plates are raised by the valve-stem, an unobstructed passage through the valvecasing is provided.

What I claim is- 1. The combination, with a valve-casing provided with converging seats and vertical guides, of plates having projections on their backs, a carrier-plate slidable in the said guides and Wider in the middle where it bears against the said plates than at its ends, said 60 carrier-plate engaging with the said projections, and means for raising and lowering the said carrier-plate, substantially as set forth.

2. The combination, with a valve-casing provided with converging seats, of plates provided with lugs arranged in pairs on their backs and separated by narrow passages, a carrier consisting of a double-tapered plate widest in the middle where it bears against the said plates and having its end portions arranged in the said passages, and means for raising and lowering the said carrier, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

RUSSELL BONNELL.

Witnesses:

GEO. W. OTTINGER, VICTOR PAUL. 

